The sites make it easier to meet people the best way to evaluate the potential for a relationship. They help you draw from a large pool of individuals to find those who might be of interest to you.
population having tried internet dating, it has become one of the largest online industries
You can contact others of similar interests that are beyond where you work, live, and worship.
You have a better chance of meeting people with similar beliefs. The websites either match you with people based on your preferences